Margaret and Hawkeye work on a time capsule to commemorate their time in Korea; Rizzo and BJ goof around with a fake hand grenade; Klinger becomes smitten with a young, pretty Korean war criminal.
Deep space, some time in the future. Still following the Black Guardian's orders, Turlough sabotages the TARDIS, forcing an emergency fusion with an apparently deserted starship. But the ship is headed for the notorious plague colony, Terminus. Surrounded by plague victims and space pirates, is the Doctor too preoccupied to notice the greatest threat of all - a threat connected to the position of Terminus at the exact centre of the universe?
